#练习8-3
def make_shirt(size='M',font='default'):
    print(f"size:{size}\nfont:{font}")
make_shirt('XL','Fxxk')
make_shirt(size='L',font='I Love You !')

#8-5
def describe_city(city,country='中国'):
    print(f"{city} 属于 {country}.")
describe_city('上海')
describe_city('武汉')
describe_city('东京','日本')
